Talk by historian and author Claire Bellerjeau about an an enslaved woman, Elizabeth, or “Liss,” who was deeply connected to the lead Manhattan agent in the Culper Spy Ring, a group of spies working for the American cause. She endured treachery from both sides of the conflict in her personal fight for freedom. Sponsored by the Ridgefield Historical Society, the talk will take place Thursday, Sept. 18, at 6:30 at St. Stephen’s Church North Hall, 353 Main Street, Ridgefield.